Aims:

1.Ability aims: 1).To learn some useful words and expressions 2).To learn some useful structures 2. Knowledge aims: 1).Grasp the usage of such important expressions : be of +名词（词组）; state, country, nation; gift; serve ; consider; wonder; be at war; light; remain 2).Master the sentence pattern: could never have done could not have done could have done should/ought to have done shouldn’t/ought not to have done have sth. done There’s no doubt that…